IPv4 R&E Routing Table Report 21:10 GMT Thu 21 Aug, 2025 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 995771 Prefixes after maximum aggregation (per Origin AS): 386354 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 491686 Number of IPv4 prefixes with a valid ROA: 564754 Number of IPv4 prefixes with an invalid ROA: 150 Number of IPv4 prefixes with no ROA: 430867 Total ASes present in the Internet Routing Table: 77225 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66119 Origin ASes announcing only one prefix: 27026 Transit ASes present in the Internet Routing Table: 11106 Transit-only ASes present in the Internet Routing Table: 557 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1047 Number of instances of unregistered ASNs: 1088 Number of 32-bit ASNs allocated by the RIRs: 47236 Number of 32-bit ASNs visible in the Routing Table: 38845 Prefixes from 32-bit ASNs in the Routing Table: 208187 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 432 Number of addresses announced to Internet: 3106362368 Equivalent to 185 /8s, 39 /16s and 84 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 324578 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265013 Total APNIC prefixes after maximum aggregation: 78589 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 255784 Unique aggregates announced from the APNIC address blocks: 105196 APNIC Region origin ASes present in the Internet Routing Table: 14786 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4529 APNIC Region transit ASes present in the Internet Routing Table: 1993 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10318 Number of APNIC addresses announced to Internet: 749767680 Equivalent to 44 /8s, 176 /16s and 140 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 292396 Total ARIN prefixes after maximum aggregation: 133036 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294161 Unique aggregates announced from the ARIN address blocks: 142112 ARIN Region origin ASes present in the Internet Routing Table: 19277 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7054 ARIN Region transit ASes present in the Internet Routing Table: 1988 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5299 Number of ARIN addresses announced to Internet: 1348903424 Equivalent to 80 /8s, 102 /16s and 162 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 277985 Total RIPE prefixes after maximum aggregation: 137093 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277153 Unique aggregates announced from the RIPE address blocks: 179047 RIPE Region origin ASes present in the Internet Routing Table: 29026 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12082 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12661 Number of RIPE addresses announced to Internet: 732223232 Equivalent to 43 /8s, 164 /16s and 215 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124496 Total LACNIC prefixes after maximum aggregation: 30156 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120780 Unique aggregates announced from the LACNIC address blocks: 49373 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2646 LACNIC Region transit ASes present in the Internet Routing Table: 2557 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9251 Number of LACNIC addresses announced to Internet: 170734592 Equivalent to 10 /8s, 45 /16s and 52 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 34834 Total AfriNIC prefixes after maximum aggregation: 6785 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 47460 Unique aggregates announced from the AfriNIC address blocks: 15582 AfriNIC Region origin ASes present in the Internet Routing Table: 1954 AfriNIC Prefixes per ASN: 24.29 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1316 Number of AfriNIC addresses announced to Internet: 104491776 Equivalent to 6 /8s, 58 /16s and 107 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 12898 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4591 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3940 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3289 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2967 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2172 427 183 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13994 40850 5386 AMAZON-02, US 11492 4742 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3648 1320 82 SHAW, CA 22773 3325 3030 161 ASN-CXA-ALL-CCI-22773-RDC, US 174 3292 8759 844 COGENT-174, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3218 3857 436 GOOGLE-CLOUD-PLATFORM, US 16625 3036 1286 2206 AKAMAI-AS, US 4155 2948 230 1747 USDA-1, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7539 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3868 366 2182 M247, RO 12389 3113 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 585 TELLCOM-AS, TR 212238 2329 165 1697 CDNEXT, GB 203020 1780 218 810 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1601 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12275 3270 570 UNINET, MX 10620 3482 472 1053 Telmex Colombia S.A., CO 13999 2530 511 349 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1220 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1185 371 22 Telefonica del Peru S.A.A., PE 22884 1060 70 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1018 2487 55 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1770 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 923 523 46 Vodafone-, EG 36914 578 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 15399 543 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13994 40850 5386 AMAZON-02, US 9808 12898 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12275 3270 570 UNINET, MX 12479 7539 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 18403 4591 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4030 3395 127 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 12898 12783 CHINAMOBILE-CN China Mobile Communications Grou 8151 12275 11705 UNINET, MX 12479 7539 7389 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4591 4566 FPT-AS-AP FPT Telecom Company, VN 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 11492 4742 3963 CABLEONE, US 7552 3940 3913 VIETEL-AS-AP Viettel Group, VN 20940 4030 3903 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:92 /12:298 /13:580 /14:1208 /15:2150 /16:13770 /17:8209 /18:13482 /19:24585 /20:43989 /21:51838 /22:112189 /23:103273 /24:620036 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6500 7539 UNI2-AS, ES 8151 6484 12275 UNINET, MX 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3445 3648 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2482 3325 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2387 13994 AMAZON-02, US 30036 2312 2655 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2202 3482 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2418 2:1535 3:921 4:10 5:4800 6:158 7:6 8:1544 9:3 11:172 12:1256 13:480 14:2587 15:382 16:285 17:380 18:901 20:564 21:4 22:188 23:7833 24:2704 25:2 27:2832 29:19 31:3369 32:29 33:1 34:81 35:260 36:4288 37:4576 38:9273 39:984 40:262 41:4290 42:2073 43:2703 44:385 45:18764 46:5121 47:338 49:1971 50:2042 51:591 52:1560 54:330 55:1103 56:11 57:285 58:2244 59:1283 60:1178 61:2864 62:3022 63:1785 64:5603 65:2136 66:4813 67:3101 68:1068 69:3918 70:1032 71:637 72:2848 74:2817 75:1509 76:602 77:2777 78:1914 79:1735 80:2229 81:2089 82:3260 83:1449 84:1922 85:3451 86:1125 87:2146 88:1353 89:4471 90:775 91:8419 92:2761 93:2980 94:4140 95:4452 96:1466 97:310 98:953 99:711 100:71 101:1217 102:3908 103:32328 104:5284 105:771 106:875 107:2646 108:1266 109:4192 110:2240 111:3579 112:2466 113:1847 114:1980 115:2230 116:2075 117:2699 118:3040 119:1916 120:2201 121:1334 122:2810 123:2237 124:1660 125:2883 126:91 128:1627 129:964 130:1305 131:2068 132:782 133:460 134:1634 135:357 136:1474 137:1310 138:2842 139:1605 140:1618 141:1538 142:1914 143:1989 144:1216 145:587 146:2183 147:2108 148:2714 149:3012 150:1252 151:2370 152:2113 153:633 154:7202 155:1909 156:3227 157:1961 158:1388 159:2542 160:3609 161:1924 162:3903 163:2285 164:1886 165:2483 166:1543 167:2059 168:3873 169:772 170:5242 171:997 172:4259 173:3410 174:904 175:1323 176:3746 177:4818 178:3987 179:2321 180:2594 181:4175 182:3609 183:2266 184:2070 185:21641 186:5348 187:4615 188:4304 189:4373 190:9419 191:1549 192:11364 193:9472 194:7796 195:5634 196:3290 197:3220 198:6242 199:8640 200:8207 201:6366 202:10408 203:10651 204:4602 205:3646 206:4538 207:3640 208:4301 209:5174 210:4725 211:2651 212:4614 213:3832 214:1037 215:51 216:6804 217:3308 218:1437 219:397 220:2141 221:1212 222:742 223:2815 End of report